Inputs To And Outputs From Punch Driver Pcb - Sharp AR-FN8 Service Manual

CHAPTER 4 PUNCHER UNIT (OPTION) BASIC OPERATION
B.

Inputs to and Outputs from Punch Driver PCB

1. Inputs to Punch Driver PCB (1/3)
PI1P
Horizontal
registration home
position sensor
PI2P
Punch motor
clock sensor
PI3P
Punch home
position sensor
N.O.
Front door
switch
MS2P
Photosensor PCB
PTR1
PTR2
PTR3
4-2
J102-3
-1
-2
J105-1
-2
-3
J104-1
-2
-3
+5V
J11-2
-3
-4
-5
-6
PTR4
PTR5 -7
-1
J1A-1
-3
-2
J1B-6
-5
-4
J1B-3
-2
-1
J5-1
-2
J5-3
-4
J7-12
-11
-10
-9
-8
-7
-13
Figure 4-102
Punch driver PCB
+5V
When the punch slide
SREGHP
unit is at the home
position, "1".
+5V
When the punch motor
PUNCHCLK
is rotating, alternatly
between "1" and "0".
+5V
When the hole puncher is
PUNCHHP*
at the home position, "0".
+24V
When the front door is
FDROPN
closed, "1".
+5V
SREG1*
SREG2*
When paper is detected,
SREG3*
"0".
SREG4*
PAEND*